body,h1,table{
    /*margin:0;*/
    /*padding: 0;*/
}
.dv{
    width: 800px;
    /*height: 350px;*/
    margin: 0px auto;
    border:2px solid royalblue;
   overflow: hidden;
}

.dv table{
    width:750px;
    margin-left: 25px;
    /*表格的实线*/
    border-collapse: collapse;
}

tr,th,td{
    width:35px;
    line-height: 20px;
    text-align: center;
    font-size: 12px;
}

tr td a{
    text-decoration: none;
    color:brown;
    font-size: 8px;
}

.page{
  margin-left: 200px;
}
.page a{
    text-decoration: none;
    color:blue;
}
.pp{
    margin: 0 auto;
}